After more 2 000 000 (two million) views on forum for 1.5.0.x development versions... and 1.6.1.0, 1.6.3.0-dev versions
A new stable version, UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 have been released: https://forum.uvnc.com/viewtopic.php?t=38095
Feedback is always welcome

2025-12-05: Celebrating the 23th anniversary of the UltraVNC (26th anniversary since the laying of the foundation stone): https://forum.uvnc.com/viewtopic.php?t=38130

2025-12-03: Could you please complete our poll/survey? Renaming UltraVNC files and service to be more clear: https://forum.uvnc.com/viewtopic.php?t=38128
There was a problem to vote, it is solved now! Thanks in advance!

2025-12-02: We need help: English Wikipedia UltraVNC page has been requested to deletion: https://forum.uvnc.com/viewtopic.php?t=38127
Any help is welcome to improve the UltraVNC page and/or to comment on the Wikipedia Talk page

2025-05-06: Forum password change request: https://forum.uvnc.com/viewtopic.php?t=38078

2023-09-21: Important: Please update to latest version before to create a reply, a topic or an issue: https://forum.uvnc.com/viewtopic.php?t=37864

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Error reading protocol version

Single Click discussions / bugs
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xMaximex
Posts: 1
Joined: 2005-08-19 14:37

Error reading protocol version

Post by xMaximex »

Hi,

I try to use SC UVNC. I'm behind a linux firewall. Port 5500 is forwarded to my PC. When i use SC on a remote computer, it says that it's trying to connect. On my PC i get the error : Error reading protocol version.

I tryied with both rc18 and v.100 and i have the same error.

How can I fix that ?
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redge
1000
1000
Posts: 6797
Joined: 2004-07-03 17:05
Location: Switzerland - Geneva

Post by redge »

  • OK
    windows OS (SC) --> linux firewall ---> windows OS (vncviewer -listen)
  • NOK (reason, rfb protocol removed from winvncsc, singleclick)
    windows OS (SC) --> linux firewall ---> linux OS (tightvnc, realvnc listen)
  • NOK (reason, rfb protocol removed from winvncsc, singleclick)
    windows OS (SC) --> linux firewall ---> linux/mac/windows OS (java viewer) don't support repeater mode II with ID number) :cry:
UltraVNC 1.0.9.6.1 (built 20110518)
Windows OS: XP Home + Vista Business + 7 Home
Only experienced user, [u]not[/u] developer
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